CN111809645A - Green building pile foundation structure - Google Patents
Green building pile foundation structure Download PDFInfo
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- CN111809645A CN111809645A CN202010688794.0A CN202010688794A CN111809645A CN 111809645 A CN111809645 A CN 111809645A CN 202010688794 A CN202010688794 A CN 202010688794A CN 111809645 A CN111809645 A CN 111809645A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
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Abstract
The application relates to a building pile foundation field particularly, relates to a green building pile foundation structure. The utility model provides a green building pile foundation structure, its includes cushion cap, first tubular pile, first coupling assembling, a plurality of second tubular pile and a plurality of second coupling assembling. The bottom of the bearing platform is provided with a first mounting groove and a plurality of second mounting grooves, the first mounting groove is positioned in the center of the bottom of the bearing platform, and the plurality of second mounting grooves are distributed on the periphery of the first mounting groove around the axis of the first mounting groove; the first steel cable, the second steel cable, the third steel cable and the fourth steel cable are all arranged along the vertical direction; and the first positioning block is in surface contact with the first semicircular matching groove under the action of the second steel cable and the third steel cable, and the second positioning block is in surface contact with the second semicircular matching groove under the action of the third steel cable and the fourth steel cable. This green building pile foundation structure can improve holistic anti-seismic performance.
Description
Technical Field
The application relates to a building pile foundation field particularly, relates to a green building pile foundation structure.
Background
At present, the prestressed concrete pipe pile is widely applied to the field of building engineering as one of important forms of a pile foundation. However, because the tubular pile is of a hollow structure, the shearing resistance and the bending resistance of the tubular pile are both obviously lower than those of a solid pile with the same size, the inherent deficiency exists in the aspect of resisting horizontal earthquake load, and the overall earthquake resistance of the foundation is seriously reduced.
Disclosure of Invention
The application provides a green building pile foundation structure to improve above-mentioned problem.
The invention is particularly such that:
a green building pile foundation structure comprises a bearing platform, a first tubular pile, a first connecting assembly, a plurality of second tubular piles and a plurality of second connecting assemblies;
the bottom of the bearing platform is provided with a first mounting groove and a plurality of second mounting grooves, the first mounting groove is positioned in the center of the bottom of the bearing platform, and the plurality of second mounting grooves are distributed on the periphery of the first mounting groove around the axis of the first mounting groove;
the pile head of the first tubular pile is matched with the first mounting groove, the first connecting assembly comprises a first ground anchor and a first steel cable, the first ground anchor is anchored in soil below the first tubular pile, one end of the first steel cable penetrates through the bearing platform and the first tubular pile and then is connected with the central ground anchor, and the other end of the first steel cable is connected with the bearing platform;
the plurality of second connecting components, the plurality of second tubular piles and the plurality of second mounting grooves correspond to one another one to one; each second connecting assembly comprises a second ground anchor, a second steel cable, a third steel cable, a fourth steel cable, a first connecting block, a second connecting block, a first positioning block and a second positioning block;
the first connecting block is matched with the corresponding second mounting groove, the second connecting block is connected with the corresponding second tubular pile, the first connecting block is provided with a first semicircular matching groove which is sunken towards the direction close to the bearing platform, the second connecting block is provided with a second semicircular matching groove which is sunken towards the direction close to the second tubular pile, and the first connecting block is connected with the second connecting block so that the first semicircular matching groove and the second semicircular matching groove form a movable cavity together; the first positioning block and the second positioning block are both positioned in the movable cavity, the first positioning block is matched with the first semicircular matching groove, and a semicircular end face matched with the first semicircular matching groove is arranged at one end of the first positioning block matched with the first semicircular matching groove; the second positioning block is matched with the second semicircular matching groove, and a semicircular end face matched with the second semicircular matching groove is arranged at one end of the second positioning block matched with the second semicircular matching groove;
one end of a second steel cable is connected with the bearing platform, and the other end of the second steel cable penetrates through the bearing platform and the first connecting block and then is connected with a first positioning block in the movable cavity; one end of a third steel cable is connected with the first positioning block, and the other end of the third steel cable is connected with the second positioning block; each second ground anchor is anchored in soil below the corresponding second tubular pile, one end of a fourth steel stay cable is connected with the second ground anchor below the corresponding second tubular pile, and the other end of the fourth steel stay cable is connected with a second positioning block located in the movable cavity;
the first steel cable, the second steel cable, the third steel cable and the fourth steel cable are all arranged along the vertical direction; the first positioning block is in contact with the first semicircular matching groove surface under the action of the second steel cable and the third steel cable, the second positioning block is in contact with the second semicircular matching groove surface under the action of the third steel cable and the fourth steel cable, and the first positioning block and the second positioning block which are positioned in the movable cavity are spaced under the action of the second steel cable, the third steel cable and the fourth steel cable; the first positioning block and the second positioning block can rotate relative to the first connecting block and the second connecting block respectively under the action of external force so as to compress or stretch the second steel cable, the third steel cable or the fourth steel cable to absorb deformation energy.
In one embodiment of the present invention, the surface area of the first positioning block for contact with the first semicircular fitting groove is smaller than the area of the inner peripheral surface of the first semicircular fitting groove;
the surface area of the surface of the second positioning block, which is used for being in contact with the second semicircular matching groove, is smaller than the area of the inner circumferential surface of the second semicircular matching groove.
In an embodiment of the invention, the second connecting assembly includes a connecting member disposed between the first positioning block and the second positioning block, one end of the connecting member is connected to the first positioning block, the other end of the connecting member is connected to the second positioning block, and the connecting member is used for limiting a minimum interval between the first positioning block and the second positioning block.
In an embodiment of the invention, the connecting member includes a plurality of steel plates and a plurality of elastic pads, and the plurality of steel plates and the plurality of elastic pads are sequentially stacked in a staggered manner.
In an embodiment of the present invention, two ends of the connecting member near the first positioning block and the second positioning block are both elastic pads.
In an embodiment of the present invention, the connecting member further includes a plurality of springs, and the plurality of springs are respectively disposed between the connecting member and the connecting surface of the first positioning block, and between the connecting member and the connecting surface of the second positioning block;
and two ends of the spring between the connecting piece and the first positioning block are respectively connected with the first positioning block and the connecting piece, and the spring between the connecting piece and the second positioning block is respectively connected with the connecting piece and the second positioning block.
In one embodiment of the invention, the end part of the second mounting groove facing the second tubular pile is provided with an arc-shaped inner peripheral surface, and the end part of the second connecting part facing one end of the bearing platform is provided with an arc-shaped outer peripheral surface;
the arc inner peripheral surface is matched with the arc outer peripheral surface.
In one embodiment of the invention, the first connecting block is provided with a first through hole along the central axis direction of the first semicircular matching groove, and the inner diameter of the first through hole is larger than the outer diameter of the second steel cable so as to allow the second steel cable to pass through.
In one embodiment of the invention, the second connecting block is provided with a second through hole along the central axis direction of the second semicircular matching groove, and the inner diameter of the second through hole is larger than the outer diameter of the fourth steel cable so as to allow the fourth steel cable to pass through.
The invention has the beneficial effects that:
this green building pile foundation structure includes cushion cap, first tubular pile, first coupling assembling, a plurality of second tubular pile and a plurality of second coupling assembling.
The bearing platform comprises a bearing platform, a first mounting groove and a plurality of second mounting grooves, wherein the bottom of the bearing platform is provided with the first mounting groove and the second mounting grooves; the pile head of the first tubular pile is matched with the first mounting groove, the first connecting assembly comprises a first ground anchor and a first steel cable, the first ground anchor is anchored in soil below the first tubular pile, one end of the first steel cable penetrates through the bearing platform and the first tubular pile and then is connected with the central ground anchor, and the other end of the first steel cable is connected with the bearing platform;
the plurality of second connecting components, the plurality of second tubular piles and the plurality of second mounting grooves correspond to one another one to one; each second connecting assembly comprises a second ground anchor, a second steel cable, a third steel cable, a fourth steel cable, a first connecting block, a second connecting block, a first positioning block and a second positioning block; the first connecting block is matched with the corresponding second mounting groove, the second connecting block is connected with the corresponding second tubular pile, the first connecting block is provided with a first semicircular matching groove which is sunken towards the direction close to the bearing platform, the second connecting block is provided with a second semicircular matching groove which is sunken towards the direction close to the second tubular pile, and the first connecting block is connected with the second connecting block so that the first semicircular matching groove and the second semicircular matching groove form a movable cavity together; the first positioning block and the second positioning block are both positioned in the movable cavity, the first positioning block is matched with the first semicircular matching groove, and a semicircular end face matched with the first semicircular matching groove is arranged at one end of the first positioning block matched with the first semicircular matching groove; the second positioning block is matched with the second semicircular matching groove, and a semicircular end face matched with the second semicircular matching groove is arranged at one end of the second positioning block matched with the second semicircular matching groove; one end of a second steel cable is connected with the bearing platform, and the other end of the second steel cable penetrates through the bearing platform and the first connecting block and then is connected with a first positioning block in the movable cavity; one end of a third steel cable is connected with the first positioning block, and the other end of the third steel cable is connected with the second positioning block; each second ground anchor is anchored in soil below the corresponding second tubular pile, one end of a fourth steel stay cable is connected with the second ground anchor below the corresponding second tubular pile, and the other end of the fourth steel stay cable is connected with a second positioning block located in the movable cavity; the first steel cable, the second steel cable, the third steel cable and the fourth steel cable are all arranged along the vertical direction; the first positioning block is in contact with the first semicircular matching groove surface under the action of the second steel cable and the third steel cable, the second positioning block is in contact with the second semicircular matching groove surface under the action of the third steel cable and the fourth steel cable, and the first positioning block and the second positioning block which are positioned in the movable cavity are spaced under the action of the second steel cable, the third steel cable and the fourth steel cable; the first positioning block and the second positioning block can rotate relative to the first connecting block and the second connecting block respectively under the action of external force so as to compress or stretch the second steel cable, the third steel cable or the fourth steel cable to absorb deformation energy.
From this, this green building pile foundation structure can improve this green building pile foundation structure's stability through first steel cable and fourth steel cable respectively with being connected of first earth anchor and second earth anchor. And shear and bending resistance bearing capacity and the resistance level earthquake load of this green building pile foundation structure pass through the second steel cable, third steel cable and fourth steel cable are connected with first locating piece and second locating piece respectively, thereby can absorb the energy of deformation through the displacement between first locating piece and first connecting piece, the displacement between second locating piece and second connecting piece, the compression or the tensile of first steel cable, the compression or the tensile of second steel cable, the compression or the tensile of third steel cable and the compression or the tensile of fourth steel cable, thereby can improve this green building pile foundation structure's whole anti-seismic performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a green building pile foundation structure provided by the present application;
fig. 2 is a schematic structural diagram of a first connection block and a second connection block provided in the present application;
fig. 3 is a schematic structural diagram of a first positioning block and a second positioning block provided in the present application;
fig. 4 is a schematic structural diagram of a connector provided in the present application.
Icon: 200-green building pile foundation structure; 210-a cushion cap; 220-first tubular pile; 230-a first connection assembly; 240-second tubular pile; 250-a second connection assembly; 211-a first mounting groove; 212-a second mounting groove; 231-a first ground anchor; 232-a first steel cable; 251-a second ground anchor; 252-a second steel cable; 253-a third steel cable; 254-a fourth steel cable; 255-first connection block; 256-second connecting block; 257 — first positioning block; 258-second positioning block; 259-a first semi-circular mating groove; 261-a second semicircular mating groove; 262-an active cavity; 263-semicircular end face; 270-a connector; 271-steel plate; 272-an elastic pad; 273-spring;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
referring to fig. 1 to 4, the present invention provides a green building pile foundation structure 200, which includes a cap 210, a first tubular pile 220, a first connecting assembly 230, a plurality of second tubular piles 240, and a plurality of second connecting assemblies 250;
a first mounting groove 211 and a plurality of second mounting grooves 212 are formed in the bottom of the bearing platform 210, the first mounting groove 211 is located in the center of the bottom of the bearing platform 210, and the plurality of second mounting grooves 212 are distributed on the periphery of the first mounting groove 211 around the axis of the first mounting groove 211;
the pile head of the first tubular pile 220 is matched with the first mounting groove 211, the first connecting component 230 comprises a first ground anchor 231 and a first steel cable 232, the first ground anchor 231 is anchored in soil below the first tubular pile 220, one end of the first steel cable 232 penetrates through the bearing platform 210 and the first tubular pile 220 and then is connected with the central ground anchor, and the other end of the first steel cable 232 is connected with the bearing platform 210;
the plurality of second connecting components 250, the plurality of second tubular piles 240 and the plurality of second mounting grooves 212 are in one-to-one correspondence; each second connecting assembly 250 comprises a second ground anchor 251, a second steel cable 252, a third steel cable 253, a fourth steel cable 254, a first connecting block 255, a second connecting block 256, a first positioning block 257 and a second positioning block 258;
the first connecting block 255 is matched with the corresponding second mounting groove 212, the second connecting block 256 is connected with the corresponding second tubular pile 240, the first connecting block 255 is provided with a first semicircular matching groove 259 which is recessed towards the direction close to the bearing platform 210, the second connecting block 256 is provided with a second semicircular matching groove 261 which is recessed towards the direction close to the second tubular pile 240, and the first connecting block 255 is connected with the second connecting block 256, so that the first semicircular matching groove 259 and the second semicircular matching groove 261 jointly form a movable cavity 262; the first positioning block 257 and the second positioning block 258 are both located in the movable cavity 262, the first positioning block 257 is matched with the first semicircular matching groove 259, and a semicircular end face 263 matched with the first semicircular matching groove 259 is arranged at one end of the first positioning block 257 matched with the first semicircular matching groove 259; the second positioning block 258 is matched with the second semicircular matching groove 261, and a semicircular end face 263 matched with the second semicircular matching groove 261 is arranged at one end, matched with the second semicircular matching groove 261, of the second positioning block 258;
one end of the second steel cable 252 is connected with the bearing platform 210, and the other end of the second steel cable 252 passes through the bearing platform 210 and the first connecting block 255 and then is connected with the first positioning block 257 in the movable cavity 262; one end of the third steel cable 253 is connected with the first positioning block 257, and the other end of the third steel cable 253 is connected with the second positioning block 258; each second ground anchor 251 is anchored in the soil below the corresponding second tubular pile 240, one end of a fourth steel cable 254 is connected with the second ground anchor 251 below the corresponding second tubular pile 240, and the other end of the fourth steel cable 254 is connected with a second positioning block 258 located in the movable cavity 262;
the first steel cable 232, the second steel cable 252, the third steel cable 253 and the fourth steel cable 254 are all arranged along the vertical direction; the first positioning block 257 is in surface contact with the first semicircular matching groove 259 under the action of the second steel cable 252 and the third steel cable 253, the second positioning block 258 is in surface contact with the second semicircular matching groove 261 under the action of the third steel cable 253 and the fourth steel cable 254, and the first positioning block 257 and the second positioning block 258 in the movable cavity 262 are spaced under the action of the second steel cable 252, the third steel cable 253 and the fourth steel cable 254; the first positioning block 257 and the second positioning block 258 rotate relative to the first connecting block 255 and the second connecting block 256, respectively, under the action of external force, so as to compress or stretch the second steel cable 252, the third steel cable 253, or the fourth steel cable 254 to absorb deformation energy.
Referring to fig. 1 to 4, the working principle of the green building pile foundation structure 200 is as follows:
the green building pile foundation structure 200 includes a cap 210, a first pipe pile 220, a first connection assembly 230, a plurality of second pipe piles 240, and a plurality of second connection assemblies 250.
The first connecting assembly 230 is used for connecting the first tubular pile 220 and the bearing platform 210, and the second connecting assembly 250 is used for connecting the bearing platform 210 and the second tubular pile 240, and can absorb deformation energy through the first connecting assembly 230 and the second connecting assembly 250, so as to improve the overall anti-seismic performance of the green building pile foundation structure 200.
Specifically, when the bearing platform 210 is arranged, in order to facilitate installation of the first connection assembly 230 and the second connection assembly 250, so as to realize connection between the bearing platform 210 and the first tubular pile 220 and the second tubular pile 240, a first installation groove 211 and a plurality of second installation grooves 212 are arranged at the bottom of the bearing platform 210, the first installation groove 211 is located at the center of the bottom of the bearing platform 210, and the plurality of second installation grooves 212 are distributed on the periphery of the first installation groove 211 around the axis of the first installation groove 211; the pile head of the first tubular pile 220 is matched with the first mounting groove 211, the first connecting component 230 comprises a first ground anchor 231 and a first steel cable 232, the first ground anchor 231 is anchored in soil below the first tubular pile 220, one end of the first steel cable 232 penetrates through the bearing platform 210 and the first tubular pile 220 and then is connected with the central ground anchor, and the other end of the first steel cable 232 is connected with the bearing platform 210.
When setting up a plurality of second coupling assembling 250, for improving this green building pile foundation structure 200's overall stability, so a plurality of second coupling assembling 250, a plurality of second tubular pile 240 and a plurality of second mounting groove 212 one-to-one.
In order to make the second connection assemblies 250 improve the shear and bending resistance bearing capacity of the green building pile foundation structure 200 and resist horizontal seismic loads, each second connection assembly 250 includes a second ground anchor 251, a second steel cable 252, a third steel cable 253, a fourth steel cable 254, a first connection block 255, a second connection block 256, a first positioning block 257 and a second positioning block 258; the first connecting block 255 is matched with the corresponding second mounting groove 212, the second connecting block 256 is connected with the corresponding second tubular pile 240, the first connecting block 255 is provided with a first semicircular matching groove 259 which is recessed towards the direction close to the bearing platform 210, the second connecting block 256 is provided with a second semicircular matching groove 261 which is recessed towards the direction close to the second tubular pile 240, and the first connecting block 255 is connected with the second connecting block 256, so that the first semicircular matching groove 259 and the second semicircular matching groove 261 jointly form a movable cavity 262; the first positioning block 257 and the second positioning block 258 are both located in the movable cavity 262, the first positioning block 257 is matched with the first semicircular matching groove 259, and a semicircular end face 263 matched with the first semicircular matching groove 259 is arranged at one end of the first positioning block 257 matched with the first semicircular matching groove 259; the second positioning block 258 is matched with the second semicircular matching groove 261, and a semicircular end face 263 matched with the second semicircular matching groove 261 is arranged at one end, matched with the second semicircular matching groove 261, of the second positioning block 258; one end of the second steel cable 252 is connected with the bearing platform 210, and the other end of the second steel cable 252 passes through the bearing platform 210 and the first connecting block 255 and then is connected with the first positioning block 257 in the movable cavity 262; one end of the third steel cable 253 is connected with the first positioning block 257, and the other end of the third steel cable 253 is connected with the second positioning block 258; each second ground anchor 251 is anchored in the soil below the corresponding second tubular pile 240, one end of a fourth steel cable 254 is connected with the second ground anchor 251 below the corresponding second tubular pile 240, and the other end of the fourth steel cable 254 is connected with a second positioning block 258 located in the movable cavity 262; the first steel cable 232, the second steel cable 252, the third steel cable 253 and the fourth steel cable 254 are all arranged along the vertical direction; the first positioning block 257 is in surface contact with the first semicircular matching groove 259 under the action of the second steel cable 252 and the third steel cable 253, the second positioning block 258 is in surface contact with the second semicircular matching groove 261 under the action of the third steel cable 253 and the fourth steel cable 254, and the first positioning block 257 and the second positioning block 258 in the movable cavity 262 are spaced under the action of the second steel cable 252, the third steel cable 253 and the fourth steel cable 254; the first positioning block 257 and the second positioning block 258 rotate relative to the first connecting block 255 and the second connecting block 256, respectively, under the action of external force, so as to compress or stretch the second steel cable 252, the third steel cable 253, or the fourth steel cable 254 to absorb deformation energy. That is, during an earthquake, the energy of the earthquake may cause deformation and displacement between the cap 210 and the first and second tubular piles 220 and 240, and in this process, the first steel cable 232 of the first connection assembly 230 may maintain the overall stability of the green building pile structure 200, and in the second connection assembly 250, by the above-mentioned arrangement of the second connection assembly 250, one or more of the second steel cable 252, the third steel cable 253, and the fourth steel cable 254 may be compressed or tensile deformed by the displacement between the first positioning block 257 and the first connection block 255 and the displacement between the second positioning block 258 and the second connection block 256, so that the earthquake energy may be absorbed by one or more of the second steel cable 252, the third steel cable 253, and the fourth steel cable 254 being compressed or tensile deformed. When the second steel cable 252, the third steel cable 253, and the fourth steel cable 254 are provided, the forces acting between the first connecting block 255, the second connecting block 256, the first positioning block 257, and the second positioning block 258 among the second steel cable 252, the third steel cable 253, and the fourth steel cable 254 are kept balanced, so that the overall stability of the green building pile foundation structure 200 can be maintained after deformation.
From this, this green building pile foundation structure 200 can improve this green building pile foundation structure 200's stability through first steel cable 232 and fourth steel cable 254 respectively with being connected of first earth anchor 231 and second earth anchor 251. In order to improve the shear and bending resistance bearing capacity and horizontal seismic load resistance of the green building pile foundation structure 200, the second steel cable 252, the third steel cable 253 and the fourth steel cable 254 are respectively connected with the first positioning block 257 and the second positioning block 258, so that the deformation energy can be absorbed by the displacement between the first positioning block 257 and the first connecting block 255, the displacement between the second positioning block 258 and the second connecting block 256, the compression or tension of the first steel cable 232, the compression or tension of the second steel cable 252, the compression or tension of the third steel cable 253 and the compression or tension of the fourth steel cable 254, and the overall seismic performance of the green building pile foundation structure 200 can be improved.
Further, referring to fig. 1 to 4, in the present embodiment, in order to enable the first positioning block 257 to have a certain displacement relative to the first connecting block 255, a surface area of a surface of the first positioning block 257 contacting the first semicircular engaging groove 259 is smaller than an inner circumferential surface area of the first semicircular engaging groove 259; similarly, the surface area of the second positioning block 258 that is in contact with the second semicircular fitting groove 261 is smaller than the inner circumferential surface area of the second semicircular fitting groove 261, so that the second positioning block 258 can have a certain amount of displacement with respect to the second connecting block 256.
In the present embodiment, in order to limit the deformation amount of the second connecting assembly 250 in the process of absorbing the seismic energy through the second connecting assembly 250, the second connecting assembly 250 includes a connecting member 270 disposed between the first positioning block 257 and the second positioning block 258, one end of the connecting member 270 is connected to the first positioning block 257, the other end of the connecting member 270 is connected to the second positioning block 258, and the connecting member 270 is used to limit the minimum interval between the first positioning block 257 and the second positioning block 258.
Further, referring to fig. 1-4, in order to make the first positioning block 257 and the second positioning block 258 have the ability of resetting again, that is, after the displacement occurs, the first positioning block 257 and the second positioning block 258 can return to the original position, the connecting member 270 includes a plurality of steel plates 271, a plurality of elastic pads 272 and a plurality of springs 273, the plurality of steel plates 271 and the plurality of elastic pads 272 are sequentially stacked in a staggered manner, and both ends of the connecting member 270 close to the first positioning block 257 and the second positioning block 258 are the elastic pads 272, the plurality of springs 273 are respectively disposed between the connecting member 270 and the connecting surface of the first positioning block 257 and between the connecting member 270 and the connecting surface of the second positioning block 258; two ends of the spring 273 between the connecting member 270 and the first positioning block 257 are respectively connected to the first positioning block 257 and the connecting member 270, and the spring 273 between the connecting member 270 and the second positioning block 258 is respectively connected to the connecting member 270 and the second positioning block 258. That is, the first positioning block 257 and the second positioning block 258 can be reset by the arrangement of the plurality of elastic pads 272 and the plurality of springs 273.
Further, referring to fig. 1 to 4, in the present embodiment, in order to improve the installation stability of the second tubular pile 240, an arc-shaped inner peripheral surface is disposed at an end portion of the second installation groove 212 facing the second tubular pile 240, and an arc-shaped outer peripheral surface is disposed at an end portion of the second connection portion facing one end of the bearing platform 210; the arc inner peripheral surface is matched with the arc outer peripheral surface.
In order to prevent the second steel cable 252 and the fourth steel cable 254 from interfering with the displacement of the first positioning block 257 and the second positioning block 258 in the movable cavity 262, the first connecting block 255 is provided with a first through hole along the central axis of the first semicircular matching groove 259, and the inner diameter of the first through hole is larger than the outer diameter of the second steel cable 252 so as to allow the second steel cable 252 to pass through. Similarly, along the central axis direction of the second semicircular matching groove 261, the second connecting block 256 is provided with a second through hole, and the inner diameter of the second through hole is larger than the outer diameter of the fourth steel cable 254, so that the fourth steel cable 254 can pass through.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. The utility model provides a green building pile foundation structure which characterized in that:
the green building pile foundation structure comprises a bearing platform, a first tubular pile, a first connecting assembly, a plurality of second tubular piles and a plurality of second connecting assemblies;
the bottom of the bearing platform is provided with a first mounting groove and a plurality of second mounting grooves, the first mounting groove is positioned in the center of the bottom of the bearing platform, and the second mounting grooves are distributed on the periphery of the first mounting groove around the axis of the first mounting groove;
the pile head of the first tubular pile is matched with the first mounting groove, the first connecting assembly comprises a first ground anchor and a first steel cable, the first ground anchor is anchored in soil below the first tubular pile, one end of the first steel cable penetrates through the bearing platform and the first tubular pile and then is connected with the central ground anchor, and the other end of the first steel cable is connected with the bearing platform;
the plurality of second connecting assemblies, the plurality of second tubular piles and the plurality of second mounting grooves correspond to one another one to one; each second connecting assembly comprises a second ground anchor, a second steel cable, a third steel cable, a fourth steel cable, a first connecting block, a second connecting block, a first positioning block and a second positioning block;
the first connecting block is matched with the corresponding second mounting groove, the second connecting block is connected with the corresponding second tubular pile, the first connecting block is provided with a first semicircular matching groove which is sunken towards the direction close to the bearing platform, the second connecting block is provided with a second semicircular matching groove which is sunken towards the direction close to the second tubular pile, and the first connecting block is connected with the second connecting block so that the first semicircular matching groove and the second semicircular matching groove form a movable cavity together; the first positioning block and the second positioning block are both positioned in the movable cavity, the first positioning block is matched with the first semicircular matching groove, and a semicircular end face matched with the first semicircular matching groove is arranged at one end of the first positioning block matched with the first semicircular matching groove; the second positioning block is matched with the second semicircular matching groove, and a semicircular end face matched with the second semicircular matching groove is arranged at one end, matched with the second semicircular matching groove, of the second positioning block;
one end of the second steel cable is connected with the bearing platform, and the other end of the second steel cable penetrates through the bearing platform and the first connecting block and then is connected with the first positioning block in the movable cavity; one end of the third steel cable is connected with the first positioning block, and the other end of the third steel cable is connected with the second positioning block; each second ground anchor is anchored in soil below the corresponding second tubular pile, one end of each fourth steel stay is connected with the corresponding second ground anchor below the corresponding second tubular pile, and the other end of each fourth steel stay is connected with the second positioning block located in the movable cavity;
the first steel cable, the second steel cable, the third steel cable and the fourth steel cable are all arranged along the vertical direction; the first positioning block is in contact with the first semicircular matching groove surface under the action of the second steel cable and the third steel cable, the second positioning block is in contact with the second semicircular matching groove surface under the action of the third steel cable and the fourth steel cable, and the first positioning block and the second positioning block which are positioned in the movable cavity are spaced under the action of the second steel cable, the third steel cable and the fourth steel cable; the first positioning block and the second positioning block can rotate relative to the first connecting block and the second connecting block respectively under the action of external force so as to compress or stretch the second steel cable, the third steel cable or the fourth steel cable to absorb deformation energy.
2. A green building pile foundation structure according to claim 1, wherein:
the surface area of the surface of the first positioning block, which is used for being in contact with the first semicircular matching groove, is smaller than the area of the inner peripheral surface of the first semicircular matching groove;
the surface area of the surface of the second positioning block, which is used for being in contact with the second semicircular matching groove, is smaller than the area of the inner peripheral surface of the second semicircular matching groove.
3. A green building pile foundation structure according to claim 1, wherein:
the second coupling assembling is including setting up first locating piece reaches connecting piece between the second locating piece, the one end of connecting piece with first locating piece is connected, the other end of connecting piece with second locating piece connection, the connecting piece is used for the restriction first locating piece reaches minimum interval between the second locating piece.
4. A green building pile foundation structure according to claim 3, wherein:
the connecting piece includes a plurality of steel sheets and a plurality of cushion, and is a plurality of steel sheet and a plurality of the cushion is crisscross range upon range of setting in proper order.
5. A green building pile foundation structure according to claim 4, wherein:
the two ends of the connecting piece, which are close to the first positioning block and the second positioning block, are both elastic pads.
6. A green building pile foundation structure according to claim 4, wherein:
the connecting piece further comprises a plurality of springs, and the springs are respectively arranged between the connecting piece and the connecting surface of the first positioning block and between the connecting piece and the connecting surface of the second positioning block;
and two ends of the spring between the connecting piece and the first positioning block are respectively connected with the first positioning block and the connecting piece, and the spring between the connecting piece and the second positioning block is respectively connected with the connecting piece and the second positioning block.
7. A green building pile foundation structure according to any one of claims 1 to 6, wherein:
the end part of the second mounting groove, which faces the second tubular pile, is provided with an arc-shaped inner peripheral surface, and the end part of the second connecting part, which faces one end of the bearing platform, is provided with an arc-shaped outer peripheral surface;
the arc inner peripheral surface is matched with the arc outer peripheral surface.
8. A green building pile foundation structure according to any one of claims 1 to 6, wherein:
follow the central axis direction in first semicircle cooperation groove, first connecting block is provided with first clearing hole, the internal diameter of first clearing hole is greater than the external diameter of second steel cable, in order to supply the second steel cable passes through.
9. A green building pile foundation structure according to claim 8, wherein:
and the second connecting block is provided with a second through hole along the direction of the central axis of the second semicircular matching groove, and the inner diameter of the second through hole is larger than the outer diameter of the fourth steel cable so as to allow the fourth steel cable to pass through.
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| CN202010688794.0A CN111809645A (en) | 2020-07-16 | 2020-07-16 | Green building pile foundation structure |
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| CN202010688794.0A CN111809645A (en) | 2020-07-16 | 2020-07-16 | Green building pile foundation structure |
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| JP5145738B2 (en) * | 2007-03-15 | 2013-02-20 | 株式会社大林組 | Seismic construction method for structures, seismic structure for structures |
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